Neutrophil Activating Protein-2 (NAP 2) Human Active Protein

The protein encoded by this gene is a platelet-derived growth factor that belongs to the CXC chemokine family. This growth factor is a potent chemoattractant and activator of neutrophils. It has been shown to stimulate various cellular processes including DNA synthesis, mitosis, glycolysis, intracellular cAMP accumulation, prostaglandin E2 secretion, and synthesis of hyaluronic acid and sulfated glycosaminoglycan. It also stimulates the formation and secretion of plasminogen activator by synovial cells. The protein also is an antimicrobial protein with bactericidal and antifungal activity. [provided by RefSeq, Nov 2014]

PPBP: LA-PF4 stimulates DNA synthesis, mitosis, glycolysis, intracellular cAMP accumulation, prostaglandin E2 secretion, and synthesis of hyaluronic acid and sulfated glycosaminoglycan. It also stimulates the formation and secretion of plasminogen activator by human synovial cells. NAP-2 is a ligand for CXCR1 and CXCR2, and NAP-2, NAP-2(73), NAP-2(74), NAP-2(1-66), and most potent NAP-2(1-63) are chemoattractants and activators for neutrophils. TC-1 and TC-2 are antibacterial proteins, in vitro released from activated platelet alpha-granules. CTAP-III(1-81) is more potent than CTAP-III desensitize chemokine-induced neutrophil activation. Belongs to the intercrine alpha (chemokine CxC) family.

Protein type: Secreted, signal peptide; Chemokine; Secreted

Chromosomal Location of Human Ortholog: 4q12-q13

Cellular Component: extracellular space; extracellular region

Molecular Function: growth factor activity; chemokine activity; CXCR chemokine receptor binding; glucose transmembrane transporter activity

Biological Process: platelet activation; response to lipopolysaccharide; positive regulation of leukocyte chemotaxis; glucose transport; leukocyte migration during inflammatory response; regulation of cell proliferation; G-protein coupled receptor protein signaling pathway; platelet degranulation; positive regulation of cell division; defense response to bacterium; immune response; inflammatory response; blood coagulation